$videolist = $('#videolist');
$video1 = $('.video');
$video2 = $('.video2');
var videoplayitem = $('.videoitem')
function additem() {
    for(var i = 0 ;i < 5 ; i++) {
        $videolist.append(videoplayitem.clone());
    }
}
// 就是为新增的节点绑定点击事件
$videolist.on("click","#videoitem",function(){
    alert('没有视频id')
});

additem();
